• How To Iterate Array/List In Lightning Web Components (LWC)

    Published By: Venu Gutta
    Published on: Friday 10 July 2020
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    How To Iterate List Of Items In LWC

    Iterate array of elments in LWC html template

    LWC iteration: In this post we will see how to use iteration in Lightning Web Components template. Like aura:iteration in Aura, we have "for:each" in lwc. By using "for:each" we can iterate set of elements/items in lwc html template. We can access element by using for:item and we can get index value with for:index .

     <template for:each={itemList} for:item="item" for:index="index">  

    Iteration in lwc html Example: Iterate List of Accounts.

    Create apex class: IterationInLwcController
     public with sharing class IterationInLwcController {  
       @AuraEnabled(cacheable = true)  
       public static List<Account> fetchAccounts(){  
         return [SELECT Id,Name,Phone,Type,Industry,Rating,Website FROM Account LIMIT 100];  

    Create New Lightning Web Component: iterationInLwc

    If you getting list from wired property then, we need o use list.data to "for:each". Because wired property contains data and error. 
       <lightning-card title="Iteration In LWC">  
         <div class="slds-p-around_small">  
           <template for:each={accounts.data} for:item="account" for:index="index">  
             <div class="slds-p-left_small" key={account.Id}>  


     import { LightningElement, wire } from 'lwc';  
     import fetchAccounts from '@salesforce/apex/IterationInLwcController.fetchAccounts';  
     export default class IterationInLwc extends LightningElement {  
       @wire(fetchAccounts) accounts;  


  • 2 comments to ''How To Iterate Array/List In Lightning Web Components (LWC)"

    1. Nice Post. Keep up the good work Bro!

    2. sending a Map> from apex and in Javascript iterating the map and getting the List in an array but the respective list is been stored as 1 element because of that Lightning Data table not able to show the data. Trying to iterate the array but not able to get the individual record in new array. Please suggest